UCODE 9
The NXP UCODE 9 is an UHF 860–960 MHz RFID tag IC, with 96-bit EPC, 96-bit TID (48-bit unique serial number), 32-bit kill password, operating at 840–960 MHz (UHF) under EPC Gen2v2.1 (EPCglobal Class-1 Generation-2 UHF RFID).
Fastest read rate, dense retail environments
Full Specifications
| Manufacturer | NXP |
|---|---|
| Frequency Category | UHF 860–960 MHz |
| Frequency | 840–960 MHz (UHF) |
| Protocol | EPC Gen2v2.1 (EPCglobal Class-1 Generation-2 UHF RFID) |
| Memory | 96-bit EPC, 96-bit TID (48-bit unique serial number), 32-bit kill password |
| Interface | RF (contactless) |
| Temperature Range | -40°C to +85°C |
| Form Factor | Wafer (12-inch, 120 µm thick, 0.43 mm × 0.38 mm die, conventional or plasma dicing, large pads) |
| Security | 32-bit kill password, Memory Safeguard (ECC, parity check), permalock |
Engineering Brief
The UCODE 9 (SL3S1206) is an EPC Gen2v2.1 UHF RFID chip optimized for demanding retail, logistics, and baggage-tagging applications. It offers exceptional read (-24 dBm) and write (-22 dBm) sensitivity, enabling long read ranges and fast inventory of dense tag populations. Innovative features include Self-Adjust for automatic sensitivity tuning, Dynamic Backscatter for regulatory compliance, Memory Safeguard (ECC and parity check), and compatibility with single-slit antennas. Delivered on 12-inch wafers with large, rotation-tolerant Au pads, the chip supports 96-bit pre-serialized EPC, 100k write-cycle endurance, and a wide -40°C to +85°C operating range, making it ideal for global RFID deployments in retail, e-commerce, and supply-chain environments.
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Typical Applications
Standards & Compliance
Frequently Asked Questions
What is the read sensitivity of the UCODE 9 chip?
The UCODE 9 offers -24 dBm read sensitivity and -22 dBm write sensitivity, enabling long read ranges and reliable performance in dense tag environments.
What frequency range does the NXP UCODE 9 operate on?
The UCODE 9 operates in the UHF frequency range of 840–960 MHz, making it suitable for global RFID deployments across different regulatory regions.
How much memory does the UCODE 9 have for EPC storage?
The UCODE 9 provides 96 bits of EPC memory, 96-bit TID including a 48-bit unique serial number, and a 32-bit kill password for access control.
What is Self-Adjust on the UCODE 9?
Self-Adjust is an innovative feature that automatically tunes the chip's sensitivity to optimize performance across varying read conditions and tag populations.
What temperature range can the UCODE 9 operate in?
The UCODE 9 operates across a wide temperature range of -40°C to +85°C, suitable for challenging retail, logistics, and industrial environments.
How many write cycles does the UCODE 9 support?
The UCODE 9 supports 100,000 write-cycle endurance with Memory Safeguard protection including ECC and parity checks for data integrity.
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